The Kunena extension before 5.1.14 for Joomla!

published 2019-08-16 7y ago modified 2026-06-17 4mo ago also EUVD-2019-6191

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

The Kunena extension before 5.1.14 for Joomla! allows XSS via BBCode.

Patch / fix

fixed in 1

kunena kunena 5.1.14

Is CVE-2019-15120 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.36% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/h3llraiser/CVE-2019-15120 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /h3llraiser/CVE-2019-15120
exploit, third-party-advisory
kunena.org /blog/207-kunena-5-1-14-released
release-notes
vel.joomla.org /resolved/2260-kunena-5-0-x-5-1-14-xss-cross-site-scripting
third-party-advisory

Sources

CVE List CVE-2019-15120
NVD CVE-2019-15120

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.